Sagot :
Answer:
1747
The first recorded Newcomen engine was erected near Dudley Castle, Staffordshire, in 1712. Newcomen steam engine, 1747. Newcomen invented the internal-condensing jet for obtaining a vacuum in the cylinder and an automatic valve gear.
Answer:
1747
The first recorded Newcomen engine was erected near Dudley Castle, Staffordshire, in 1712. Newcomen steam engine, 1747. Newcomen invented the internal-condensing jet for obtaining a vacuum in the cylinder and an automatic valve gear.
Explanation:
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